"STABILA" CONTRACTORS LEVEL COMBO48" level and 16" levelCrystal clear vials readable in any direction with no change in accuracy toleranceSpring steel hairline indicators in vialsBest frame strength-to-weight ratioRemovable rubber end caps for scribing in corners and for reading tight header and sill openingsRubber end caps grip walls and do not leave marksMetal hang hole for storing level on siteLarge comfortable rubber hand holesHelps with fast and accurate installationsStrong wide frameVials are guaranteed for lifeShrinkwrapped